[Pharo-users] Can you help me find this info?

Hernán Morales Durand hernan.morales at gmail.com
Mon May 2 08:56:24 EDT 2016

2016-05-02 6:30 GMT-03:00 Victor RENE <victor-rene.dev at outlook.com>:

> Hello,
> I am new to Pharo and would like to understand a few things.
> I can search by myself, but I do not know the code base yet, so:
> [Questions]
> Pharo image:
>     Serialization, deserialization, where is the code?

Have a look at Fuel classes (those starting with FL)

> Pharo vm (Cog/Spur):
>     Rendering loop and event loops. done with SDL2, where is the code?

For low-level stuff you should check the primitives and/or plugins code (C
code) and its interface code (Slang code, Smalltalk subset language to
interface Slang to C code) which used to be in the VMMaker package (didn't
checked lately).

>     Message passing, object hierarchy lookup, where is the code?

There was a paper of Hernan Wilkinson about method lookup but I cannot find
the link.

> Pharo minimal:
>     How to get a working version? The builds I tried (4.0) crashed.
I don't know if it's working or experimental, it used to work some time ago.

> [Purpose]
> My goal is work out an image/vm with minimum overhead. For example,
>     let's say I want to build a modern multi-touch application.
>     Pharo's environment looks promising on the live coding/debugging side,
>     but what about the performance? Lack of responsiveness would not be
>     acceptable (think about design differences between Android/iOS).
> [Context]
> I want to understand if the object oriented nature of Smalltalk is
>     the reason for the lack of apps of this nature (as far as I can tell).
> For example, games have been done with Lisp: Jack and Daxter (on the PS2,
>     by Naughty Dogs). There are also game engines for the JVM
>     (https://www.lwjgl.org/).
> Dedicated hardware has been built for either Lisp or Forth. I can't seem
>     to find any hardware built specifically to power Smalltalk software.
> Yet as far as I can tell, it's the big time for software virtual machines,
>     because the new generation of hardware will be supporting them.
>     (https://news.ycombinator.com/item?id=10032295)

> UPDATE: I am reading through "Evaluating message passing control techniques
> in Smalltalk" (
> https://www.researchgate.net/publication/2440118_Evaluating_Message_Passing_Control_Techniques_in_Smalltalk
> ).
> I am getting a better picture of the whole, please direct to more such
> papers.
> Thanks,
> Victor RENE
> Software engineer,
> Game designer, Writer
> Blog: http://victor-rene.com
> Projects: http://logiqub.com
> tel: +33 6 26 83 61 76
> email: victor-rene at outlook.com
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